Supporting means for rotatable grinders and the like



E. NIELSEN SUPPORTING MEANS FOR ROTATABLE GRINDERS AND THE LIKE Filed Oct. 24. 192 3 Sheets-Sheet 1 IN VEN TOR.

ATTORNEY8.

July 15 1924.

E. NIELSEN .SUPPORTING MEANS FOR ROTATABIE GRINDERS AND THE LIKE 3 Sheets-Sheet *2 E11,: Oct. 24 [1921 www N GNE INVENTOR.

ATTORNEYQ July 15, 1924; 1,501,681

E. NIEL SE|N SUPPORTING anus FOR ROTAT-ABLE enmmms AND THE LIKE Filed Oct. 24. 1 21 s SheetS -Sheet :5

- INVENTOR.

ATTORNEYQS.

Patented July 15, 1924.

UNITED STATES PATENT OFFI EMANUEL NIELSEN, or RAGINE, WISCONSIN, ASSIG-NO-R To HAMILTON7BEACE 00., or RACINE, WISCONSIN, A CORPORATION or WTSCONSTN.

SUPPORTING MEANS FOR ROTATAIBLE GRiNDERS AND THE LIKE.

Application filed October 24, 1921. Serial No 509,954.

T 0 all whom it may concern:

Be it known that I, EMANUEL NIELSEN, a citizen of the United States, and resident of Racine, in the county of Racine and State of Wisconsin, have invented new and useful Improvements in Supporting Means for Rotatable Grinders and the like, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

This invention relates to improvements in supporting means for rotatable grinders, and the like.

One of the object of the invention is to provide novel means for mounting a motor driven shaft carrying a grinding tool or the like so that the parts may be easily shifted to and locked in a position whereby vibration of the parts will be reduced to amin' imum.

The invention contemplates a supporting standard on which a collar member adapted to support the shaft carrying the grinder is mounted; and a further object .of the invention is to provide means whereby said collar member may be readily adjusted on said standard in one direction, for example, vertically in combination with means where by the shaft carried by the collar member may be adjusted in a direction at right angles to said first mentioned direction, for example, in a horizontal plane.

A further and more specific feature of the invention is the provision of a Split collar member adjustably mounted on a supporting Standard which collar member adjustably Supports a casing in which a motor driven shaft is journaled; and a further feature of the invention is the provision of a pin in one of said members and a spiral groove in the other of said members adapted to receive said pin so that. the casing member which supports the motor driven shaft may be turned in one direction or the other to move it relative to the collar mem ber, thereby making it possible to easily balance the parts and to readily position the tool carried by the shaft in the horizontal and vertical planes, as may be desired.

The invention consists in the novel constructions, arrangements and devices to be hereinafter described and claimed for carrying out the above stated objects and such other bjects as will appear from the followingdescription of a certain preferred embod1ment illustrated in the accompanying drawings, vwherein Fig. 4 is a sectional view,'on an enlarged scale, taken on the line l4; of Fig. 1.

Like characters of reference designate like parts in the several views.

Referring to the drawings the novel supporting means embodying the principlesof the invention is shown as mounted upon a supporting standard 6, the base 7 of which may be secured to any suitable means, for example, to the frame 8 of a lathe,-Or the like. The standard is formed with avertically extending guideway 9 over which a horizontally extending collar 10 travels. A bracket 11 is secured to'the upper end of the standard'by pins 12 and a screw 13, in which bracket is journaled a vertically extending feed screw 14 which has threaded engagement with the collar 10, the upper end of said feed screw being provided with a handle 15 to facilitate adjustment of the collar 10.

The collar 10 is split at 10, the two portions thereof being clamped together by Screws 16, see Fig. 4. A horizontally extending tubular casing member 17 extends through the collar 10. A drive Shaft 18 extends through and is j ournaled in the tubular member 17 being supported therein by suitable bearings 19-19. The inner end of the tubular casing member 17 has threaded engagement with the frame 20 of an electric motor 21. The inner end of the shaft 18 is threaded into the portion 22" of a clutch member, designated as a whole by the reference numeral 22, the portion 22 of said clutch member having threaded engagement with the armature shaft 23 of the motor. The clutch members 22 and 22 are provided with interlocking fingers which are brought into tight fitting engagement by a ring 22, thus positively connecting the shaft 18 directly to the armature shaft of t m t r- Th app site at ent r foregoing description that the collar 10 and the parts carried thereby may" readily be adjusted vertically to the desired position by turning the feed screw let. It" will also beapparent whenthe'screws 16 are loosened sufliciently, that the tubular casing- 17 and the parts carried thereby may be moved as a unit to one side or the other relative to the collar 10 as mentioned hereinbefore to bring the tool supported by the shaft- 18 intothe. desired position. The shaft 18 is ordinarily driven at a relatively high rate of speed so thatconsiderable vibration is likely to develop during the operation of the tool. These vibratory forces may be very largely balanced or counteracted by properly posltioning the casing member 17 in the collar 10. When the casing member 17 is in the desired position. with respect to the collar member 10,it may be locked in such position by tightening the screws 16.

I claim:

1. In combination a supportingstandard, a collarmember mounted on said standard, a casing member mounted: in said collar member, and a shaft journal'ed in said caselement or the like. and a motor supported" by said casing member and operativelyconnected with said shaft, one of said members having a pin and the other a spiral groove adapted to receive said pin, whereby said casing may be axially displaced with reference to said collar by rotating said casin .-v

3. In combination a supporting standard having a guideway, a collar member slidably mounted on said guideway. a screw for adjustably positioning said collar member relative to said suporting standanb a casing member mounted in said collar member. a shaft journaled in said casing member and, adapted to carry a grinding element or the like,- and a motor supported by said casing member and operatively connected with said shaft. one of said members having: a pin and the other having a spiral groove adapted to receive said pin whereby said casing may be axially displaced relatively to said collar by rotating said casing.

In testimony whereof, I afiix' my signature.

EMANUEL NIELSEN. 

